摘要
针对第五代移动通信系统对天线的性能要求,将谢尔宾斯基分形结构、康托尔分形结构、分形折线雪花结构相融合,设计了一款三重复合分形天线,对天线性能进行了仿真分析,制作了天线样品并对其进行了测试。仿真和测试结果表明,该款天线回波损耗最小值为-21.84 d B,绝对工作带宽达到2.047 GHz,相对工作带宽达到48.51%,天线具有全向辐射特性。利用渐变介电常数介质基板设计了改进型天线结构,有效地展宽了天线的工作频段。该款天线能够完全覆盖第五代移动通信的三个候选频段,具有尺寸小、回波损耗低、工作带宽大等优点,在第五代移动通信系统中具有广阔的应用前景。
According to the requirements of the fifth generation mobile communication system to the antenna＇ s performance, this paper com- bined Sierpinski fractal structure, Cantor fractal structure, and fractal fold line snowflakes structure, and designed a triple composite fractal antenna. A sample of this antenna has been fabricated and tested after simulation analysis. The result of simulation and test indicate that the antenna＇ s return loss minimum value is -21.84 dB, the antenna＇ s absolute working bandwidth is 2. 047 GHz, the antenna＇ s relative working bandwidth is 48.51%. The antenna has omni directional radiation characteristics. We designed an improved antenna structure by using gradient dielectric constant dielectric substrate to expend antenna＇ s working bandwidth efficiently. This antenna can completely covere the three candidate frequency bands of the fifth generation mobile communication, and has the advantages of small size, low return loss and wide working bandwidth. This antenna has a broad application prospect in the fifth generation mobile communication system.
出处
《微型机与应用》
2017年第14期28-31,共4页
Microcomputer & Its Applications
基金
福建省自然科学基金计划资助项目(2016J01318)
关键词
第五代移动通信
谢尔宾斯基分形结构
康托尔分形结构
分形折线雪花结构
三重复合分形天线
fifth generation mobile communication
Sierpinski fractal structure
Cantor fractal structure
fractal fold line snowflakes structure
triple composite fractal antenna
